--- version: rssac002v3 service: i.root-servers.net start-period: '2019-06-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 84358581 dns-udp-queries-received-ipv6: 15332628 dns-tcp-queries-received-ipv4: 1827140 dns-tcp-queries-received-ipv6: 44127 dns-udp-responses-sent-ipv4: 84910128 dns-udp-responses-sent-ipv6: 15332611 dns-tcp-responses-sent-ipv4: 1850677 dns-tcp-responses-sent-ipv6: 44171